SINCE 1828
sodium metasilicate
noun
sodium meta·sil·i·cate
| \ -ˌme-tə-ˈsi-lə-ˌkāt
, -ˈsi-li-kət\
, -ˈsi-li-kət\
Definition of sodium metasilicate
: a toxic corrosive crystalline salt Na2SiO3 used especially as a detergent or as a substitute for phosphates in detergent formulations
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